C++ In a Nutshell

Name

assert macro — Checks an assertion at runtime

Synopsis

void assert(int expression)

If enabled, the assert macro ensures the expression is true (nonzero). If so, nothing happens, and execution continues normally. If the expression evaluates to 0, assert prints a message to the standard error file and calls abort. The format of the message is implementation-defined, but it includes a textual representation of expression and the filename and line number where the assert call appears (that is, the values of the _ _FILE_ _ and _ _LINE_ _ macros).

If disabled, the assert macro does not evaluate expression and has no effect.

See Also

abort function in <cstdlib> , throw keyword